The mechanical power developed by a shunt motor will be maximum when the ratio of back e.m.f. to applied voltage is
0.5
The mechanical power developed by a shunt motor will be maximum when the ratio of back e.m.f. to applied voltage is 0.5
The current drawn by a 120 V dc motor with back emf of 110 V and armature resistance of 0.4 ohm is
With the increase in speed of a dc motor